Word: ultraviolet
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Dates: during 1930-1939
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Cook's professional astronomer, Dr. Orren Mohler, 28 (University of Michigan), in connection with a photoelectric Geiger-Miiller counter which records the ultraviolet radiation of distant stars by a series of staccato clicks...
...Famed Nova Herculis of 1934 became one of the twelve brightest stars, but it started from the 14th magnitude. If Gamma becomes a nova, starting from the first or second magnitude, it will be brilliantly visible in broad daylight. And imaginative persons have suggested that the outpouring of injurious ultraviolet radiation may be so strong that human beings would have to carry umbrellas coated with lead before venturing under the glare of "Nova Cassiopeiae." Other highlights of the astronomers' convention: Nos- 60, 61, 62. In the sun hydrogen, helium, calcium, sodium, carbon, nitrogen, and many another terrestrial element have...
...only gases known to occur in interstellar space were sodium and calcium. Ordinarily these metallic elements must be strongly heated before they vaporize, but in the utter cold of space, close to absolute zero, they exist in exiguous quantities as free molecules and therefore as gases. In the ultraviolet range of the spectrum of the stars Chi 2 Orionis and Chi Aurigae, Astronomers Walter S. Adams and Theodore Dunham Jr. of Mt. Wilson Observatory found four lines (one of them almost blotted out by the interference of Earth's atmosphere) which they identified as originating from the element titanium...
Chicago's Northwestern University last week announced successful tests of a "sunburnometer," a recording device to measure the intensity of the ultraviolet component of the sun's light which causes sunburn. The sunburn-causing wave lengths can be considered as the "health band" in the solar spectrum, mainly because it contains the still narrower band which produces vitamin D in the skin. Developed by Professors Walter S. Huxford and Robert Cashman, the "sunburnometer" is noi sensitive to visible light or to the short radiation on the other side of the sunburn band. It may also be used...
Although the meter contains a new type of photoelectric cell, of pure magnesium enclosed in corex glass, ultraviolet recorder: themselves are not especially new. But Professors Huxford & Cashman have started right out to get geographic comparisons. They find, for example, that Iowa and Nebraska are richer in sunburning sunlight than the Chicago region, that the uplands of South Dakota are richer still. They indicate their willingness to put their heads in a lion's mouth of uproarious dispute by comparing the healthfulness of Florida's sunshine with California...